SEO Terms — 15

Trust link - a slang expression implying a link that transmits a good weight (usually index page) and thanks to which the site faster goes to the first position in the SERP. Typically trust link to as links from resources with high citation indexes.

Twitter - social networking service for microblogging, which allows you to send and read user messages called tweets. Tweets are text messages up to a length of 140 characters to fit in one SMS message when sending from a mobile phone.

Update – meaning the process of updating data in the databases of search engines such as Google, Bing or Yandex. Instead of the full version of this term in the narrow circles is often used a shortened, slang version — Up.

Usability (ease of use, practicality) is a parameter that characterizes the degree of comfort of use of something: whether it's the website or program interface. The higher the usability, the greater the location receives from site visitors, reduces the amount of exits (bounce rate), increased scroll depth.

W3C – world wide web Consortium – an organization whose primary purpose is the creation and introduction of modern standards WWW. The origin of the term associated with the acronym for the World Wide Web Consortium.